2011
Effects of chronic weight perturbation on energy homeostasis and brain structure in mice
Ravussin Y, Gutman R, Diano S, Shanabrough M, Borok E, Sarman B, Lehmann A, LeDuc CA, Rosenbaum M, Horvath TL, Leibel RL. Effects of chronic weight perturbation on energy homeostasis and brain structure in mice. AJP Regulatory Integrative And Comparative Physiology 2011, 300: r1352-r1362. PMID: 21411766, PMCID: PMC3119157, DOI: 10.1152/ajpregu.00429.2010.Peer-Reviewed Original ResearchConceptsDiet-induced obeseEnergy expenditureArcuate nucleus proopiomelanocortin neuronsWeight lossWeight-reduced individualsSustained weight lossReduced body weightObese human subjectsCentral nervous systemHuman subjectsSustained weight gainProopiomelanocortin neuronsBody massUpward resettingMale miceExcitatory synapsesBody fatMouse modelBody weightNervous systemSynaptic changesPersistent decreaseEnergy homeostasisWeight gainBrain structures
2010
Corticosterone Regulates Synaptic Input Organization of POMC and NPY/AgRP Neurons in Adult Mice
Gyengesi E, Liu ZW, D'Agostino G, Gan G, Horvath TL, Gao XB, Diano S. Corticosterone Regulates Synaptic Input Organization of POMC and NPY/AgRP Neurons in Adult Mice. Endocrinology 2010, 151: 5395-5402. PMID: 20843996, PMCID: PMC2954711, DOI: 10.1210/en.2010-0681.Peer-Reviewed Original ResearchConceptsNPY/AgRP neuronsSynaptic input organizationSham-operated controlsAgRP neuronsADX miceCorticosterone replacementNeuropeptide YArcuate nucleusSynaptic arrangementsInput organizationPair-fed control animalsPutative excitatory synapsesPutative inhibitory synapsesHypothalamic arcuate nucleusEffects of adrenalectomySham-operated animalsNumber of synapsesPOMC neuronsProtein (AgRP) neuronsOrexigenic actionMembrane potentialSynaptic analysisInhibitory synapsesExcitatory synapsesFood intakeEarly-Life Experience Reduces Excitation to Stress-Responsive Hypothalamic Neurons and Reprograms the Expression of Corticotropin-Releasing Hormone
Korosi A, Shanabrough M, McClelland S, Liu ZW, Borok E, Gao XB, Horvath TL, Baram TZ. Early-Life Experience Reduces Excitation to Stress-Responsive Hypothalamic Neurons and Reprograms the Expression of Corticotropin-Releasing Hormone. Journal Of Neuroscience 2010, 30: 703-713. PMID: 20071535, PMCID: PMC2822406, DOI: 10.1523/jneurosci.4214-09.2010.Peer-Reviewed Original ResearchMeSH KeywordsAge FactorsAnalysis of VarianceAnimalsAnimals, NewbornChromatin ImmunoprecipitationCorticotropin-Releasing HormoneExcitatory Amino Acid AntagonistsFemaleGene Expression Regulation, DevelopmentalMaleMaternal DeprivationMicroscopy, Electron, TransmissionNeuronsParaventricular Hypothalamic NucleusPatch-Clamp TechniquesPhysical StimulationPregnancyRatsRats, Sprague-DawleyRepressor ProteinsRNA, MessengerSodium Channel BlockersStress, PsychologicalSynaptic PotentialsTetrodotoxinVesicular Glutamate Transport Protein 2ConceptsCorticotropin-releasing hormoneNeuron-restrictive silencer factorCRH neuronsHypothalamic neuronsCRH expressionEarly life experiencesMiniature excitatory synaptic currentsHypothalamic CRH neuronsExcitatory synaptic currentsCRH gene expressionGlutamate vesicular transporterCRH gene transcriptionTranscriptional repressor neuron-restrictive silencer factorExcitatory innervationExperience-induced neuroplasticityInhibitory synapsesRat pupsExcitatory synapsesSynaptic currentsPersistent suppressionVesicular transportersCognitive functionNeuronsSilencer factorMaternal care
2005
Input organization and plasticity of hypocretin neurons Possible clues to obesity’s association with insomnia
Horvath TL, Gao XB. Input organization and plasticity of hypocretin neurons Possible clues to obesity’s association with insomnia. Cell Metabolism 2005, 1: 279-286. PMID: 16054072, DOI: 10.1016/j.cmet.2005.03.003.Peer-Reviewed Original ResearchConceptsHypocretin neuronsSynaptic currentsHypothalamic hypocretin neuronsMore excitatory synapsesOvernight food deprivationElevated food intakeExcitatory synaptic currentsControl of arousalCause of narcolepsyStress-induced plasticityHypocretin levelsLeptin administrationHypocretin cellsHypocretin signalingMetabolic disturbancesObesity associationSynaptic organizationExcitatory synapsesFood intakeInhibitory inputsCell bodiesUnderlying causeNeuronsInput organizationFood deprivation
2004
CPG2 A brain- and synapse-specific protein that regulates the endocytosis of glutamate receptors
Cottrell JR, Borok E, Horvath TL, Nedivi E. CPG2 A brain- and synapse-specific protein that regulates the endocytosis of glutamate receptors. Neuron 2004, 44: 677-690. PMID: 15541315, PMCID: PMC3065105, DOI: 10.1016/j.neuron.2004.10.025.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBase SequenceBlotting, NorthernBlotting, WesternBrainCells, CulturedClathrin-Coated VesiclesEndocytosisHumansIn Situ HybridizationMicroscopy, ElectronMolecular Sequence DataNerve Tissue ProteinsNeuronal PlasticityNeuronsReceptors, AMPAReceptors, GlutamateReceptors, N-Methyl-D-AspartateReverse Transcriptase Polymerase Chain ReactionSynapsesConceptsGlutamate receptorsClathrin-coated vesiclesBrain-specific splice variantSynapse-specific proteinsExcitatory synapsesReceptor endocytosisSYNE-1 geneConstitutive internalizationEndocytic mechanismsSynaptic AMPA receptorsDendritic spine sizeMembrane transportSplice variantsSynaptic proteinsNMDA receptorsAMPA receptorsProteinPostsynaptic plasticityNeurotransmitter receptorsEndocytosisSynaptic strengthLong-term maintenanceReceptorsSpine sizeInternalizationPresynaptic N‐methyl‐D‐aspartate receptor expression is increased by estrogen in an aromatase‐rich area of the songbird hippocampus
Saldanha CJ, Schlinger BA, Micevych PE, Horvath TL. Presynaptic N‐methyl‐D‐aspartate receptor expression is increased by estrogen in an aromatase‐rich area of the songbird hippocampus. The Journal Of Comparative Neurology 2004, 469: 522-534. PMID: 14755533, DOI: 10.1002/cne.11035.Peer-Reviewed Original ResearchConceptsHP neuronsVertebrate hippocampusSongbird hippocampusN-methyl-d-aspartate receptor expressionSubcellular characteristicsInfluence of estrogenFunctional plasticityType glutamate receptorsZebra finch brainPrecise mechanismSomal sizeExcitatory pathwaysReceptor expressionExcitatory neurotransmissionExcitatory synapsesGlutamate receptorsPostsynaptic locusPresynaptic boutonsHippocampusEstrogenKey interfacePlasticityNeuronsAromataseAutoreception
2001
Oestrogen‐Induced Changes in the Synaptology of the Monkey (Cercopithecus aethiops) Arcuate Nucleus During Gonadotropin Feedback
Zsarnovszky A, Horvath TL, Garcia‐Segura L, Horvath B, Naftolin F. Oestrogen‐Induced Changes in the Synaptology of the Monkey (Cercopithecus aethiops) Arcuate Nucleus During Gonadotropin Feedback. Journal Of Neuroendocrinology 2001, 13: 22-28. DOI: 10.1111/j.1365-2826.2001.00602.x.Peer-Reviewed Original ResearchConceptsGnRH neuronesGnRH cellsDay 1Day 2Day 8Pg/Gonadotropin secretionArcuate nucleusOestrogen-induced LH surgeAfrican green monkeysGonadotropin feedbackInhibitory innervationEstrogen modulationOVX monkeysLH surgeSerum concentrationsExcitatory inputsInhibitory synapsesExcitatory synapsesInhibitory inputsSynaptic connectionsGnRHNeuronesGreen monkeysSynapsesOestrogen-induced changes in the synaptology of the monkey (Cercopithecus aethiops) arcuate nucleus during gonadotropin feedback.
Zsarnovszky A, Horvath T, Garcia-Segura L, Horvath B, Naftolin F. Oestrogen-induced changes in the synaptology of the monkey (Cercopithecus aethiops) arcuate nucleus during gonadotropin feedback. Journal Of Neuroendocrinology 2001, 13: 22-8. PMID: 11123512, DOI: 10.1046/j.1365-2826.2001.00602.x.Peer-Reviewed Original ResearchConceptsGnRH neuronesGnRH cellsDay 1Day 2Day 8Pg/Gonadotropin secretionOestrogen-induced LH surgeAfrican green monkeysInhibitory innervationEstrogen modulationOVX monkeysLH surgeArcuate nucleusSerum concentrationsExcitatory inputsInhibitory synapsesExcitatory synapsesInhibitory inputsSynaptic connectionsGnRHNeuronesGreen monkeysSynapsesPronounced alterations